Laminar film condensation on the underside of horizontal and inclined surfaces

Gerstmann, J.; Griffith, P. C.

doi:10.1016/0017-9310(67)90105-6

Cited by 87 publications

(37 citation statements)

References 2 publications

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“…To compute the thermal performance of HPHX, all heat transfer equations and correlations from Yau are adopted to be applied in the present research. In order to compute the thermal resistance of the film condensation on fins, the equations below are adopted from Gerstmann and Griffith (1967) for calculation of the average heat transfer coefficient. …”

Section: Theoretical Analysismentioning

confidence: 99%

The performance study of a wet six-row heat-pipe heat exchanger operating in tropical buildings

Yau

Tucker

2003

Int. J. Energy Res.

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SUMMARYThe overall effectiveness of a wet six-row wickless heat pipe-heat exchanger (HPHX) for tropical building HVAC systems was simulated using a computer simulation program. This computer program, utilizing Fortran source code, was developed based on the effectiveness-NTU method together with the ridge model for predicting the film condensation and uses the concept of iteration to predict the temperature distribution across the HPHX and its overall effectiveness. The effects of inclination angle and inlet evaporator relative humidity on heat transfer coefficient for the HPHX were determined using TRNSYS Type98 component. The wet HPHX effectiveness and relative humidity were also studied in this research experimentally.

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Section: Theoretical Analysismentioning

confidence: 99%

The performance study of a wet six-row heat-pipe heat exchanger operating in tropical buildings

Yau

Tucker

2003

Int. J. Energy Res.

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“…This causes pressure differences in the condensate layer which triggers the motion of the Galden liquid towards the edges of the plate. According to Gerstmann and Griffith, this results in a "wavy structure" of the condensate layer on the bottom side of the plate [20]. A schematic of the condensate layer model can be seen in …”

Section: Condensate Layer Formation Modelmentioning

confidence: 99%

“…According to the principle of minimum energy [22], the maximum condensate thickness on the bottom side can be calculated [20]:…”

Section: Pysicsal Description Of the Condensate Layer Formationmentioning

confidence: 99%

Numerical simulation of condensate layer formation during vapour phase soldering

Illés

Géczy

2014

Applied Thermal Engineering

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This paper presents a modeling approach of the condensate layer formation on the surface of printed circuit boards during Vapour Phase Soldering (VPS) process. The condensate layer formation model is an extension to a previously developed board level condensation model, which calculates the mass of the condensed material on the surface of the soldered printed circuit board. The condensate layer formation model applies combined transport mechanisms including convective mass transport due to the hydrostatic pressure difference in the layer and the gravity force; conductive and convective energy transport. The model can describe the dynamic formation and change of the condensate layer after the immersion of the soldered assembly into the saturated vapour space and can calculate the mass and energy transport in the formed condensate layer. This way the effect of the condensate layer changes on the heating of the soldered assembly can be investigated. It was shown that the numerical modeling of the VPS process becomes more accurate with application of dynamic condensate layer instead of a static description.

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“…The effect of condensing film on the bottom side of a horizontal plate requires a different approach and was investigated by Gerstmann and Griffith [17,22]. Their model is based on the 0.90…”

Section: Filmwise Condensation Theorymentioning

confidence: 99%

Modeling method of heat transfer during Vapour Phase Soldering based on filmwise condensation theory

Géczy

Illés

Illyefalvi‐Vitéz

2013

International Journal of Heat and Mass Transfer

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Laminar film condensation on the underside of horizontal and inclined surfaces

Cited by 87 publications

References 2 publications

The performance study of a wet six-row heat-pipe heat exchanger operating in tropical buildings

The performance study of a wet six-row heat-pipe heat exchanger operating in tropical buildings

Numerical simulation of condensate layer formation during vapour phase soldering

Modeling method of heat transfer during Vapour Phase Soldering based on filmwise condensation theory

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